Have you receive a new alart ?

Hello friend today when i log on in my lot i have got a alert waiting for me.i watched that its a alert on my account it inform me not to face any tasks on my lot about ptc than it will cancel my account.I know that alert are send to all users of my lot and its not a private message.
Have you get such a type of alert on my lot? I can`t realize the the alert.Can you realize it.